Cost of living in Oporto (Portugal) is 30% more expensive than in Aligarh (India)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 669 prices entered by 94 different people.
For example, you would need at least ₨59,667 (€747) in Oporto to maintain the same standard of living that you can have with ₨46,000 in Aligarh.